Thanks for writing to HCmagic.
i hope you never had blackout/ loss of consciousness/ shortness of breath
or unexplained fall. if these symptoms are there , please see your cardiologist at priority.
Possibly the beats you feel are premature beats. the first thing required in their work-up is an ECG followed by ECHO. if both are negative and your cardiologist thinks its appropriate get a holter monitoring done and if your symptoms correlate with premature contractions you will need only a single drug.
please feel free to discuss further